Apparatus for internally cooling a plastic tubular film bubble

Details Apparatus for internally cooling a plastic tubular film bubble Apparatus for internally cooling a plastic tubular film bubble

1976-12-27

1978-09-19

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

264 95, 264209, 4253261, 425308, 425404, 425466, B29D 2304

Patent

active

041150481

ABSTRACT:
An apparatus and method for internally cooling extruded tubular film produced from film-forming polymers such as polyethylene, polypropylene and the like.

REFERENCES:
patent: 2966700 (1961-01-01), Dyer et al.
patent: 3265552 (1966-08-01), Berggren et al.
patent: 3749540 (1973-07-01), Upmeier
patent: 3871802 (1975-03-01), Blackwelder
patent: 3976411 (1976-08-01), Rahles et al.
patent: 4049768 (1977-09-01), Luthra

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